2012 BMW 120i N46TB20 2 BMW Remanufactured Long Block Engine
GAS • Dyno Tested • Warranty Included

About This BMW N46TB20 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 2012 BMW 120i? US Engine Production offers premium remanufactured BMW N46TB20 long block engines that meet or exceed OEM specifications. Our remanufactured long blocks are completely disassembled, cleaned, inspected, and rebuilt using new components where necessary.
Every remanufactured gas long block undergoes rigorous dynamometer testing to ensure optimal performance. With over 40 years of experience and a database of 473,000+ engines, we're America's trusted source for remanufactured long block engines.
Common BMW N46TB20 Problems We Address
Our remanufacturing process specifically addresses these known issues with BMW N46TB20 engines:
- Timing chain/belt wear
- Oil consumption issues
- Coolant leaks from gaskets
- Spark plug and ignition problems
- Valve cover gasket leaks
- Water pump failures
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
BMW Vehicle Compatibility
BMW N46TB20 engines are commonly found in these BMW vehicles:
- 3 Series, 5 Series, 7 Series sedans
- X3, X5, X7 SUVs
- M3, M5 performance vehicles
- Z4 roadster
- i3 and i8 electric/hybrid vehicles
- 2 Series and 4 Series coupes
What's Included With Your Remanufactured Long Block
Complete long block assembly with all new/remanufactured components
Core Components
- Remanufactured Engine Block
Cleaned, inspected, and machined to OEM specifications
- New Pistons & Rings
Premium quality pistons with new ring sets
- Reground Crankshaft
Precision ground to factory tolerances
- New Main Bearings
OEM-spec main bearings for proper clearance
- New Rod Bearings
Connecting rod bearings replaced
- New Camshaft
New or reground camshaft (where applicable)
Timing Components
- New Timing Chain/Belt
Complete timing set included
- New Timing Gears/Sprockets
All timing components replaced
- New Tensioners & Guides
Timing tensioners and guides included
Valvetrain
- New Lifters/Tappets
Hydraulic or solid lifters replaced
- Reconditioned Cylinder Head(s)
Heads resurfaced and pressure tested
- New Valve Seals
All valve stem seals replaced
Seals & Lubrication
- New Oil Pump
Oil pump replaced for proper lubrication
- New Gasket Set
Complete gasket set included
- New Front & Rear Seals
All main seals replaced
- New Freeze Plugs
Core plugs replaced
Frequently Asked Questions: 2012 BMW 120i BMW N46TB20 Remanufactured Engine
A remanufactured BMW N46TB20 2L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 2012 BMW 120i. The exact price depends on the specific configuration, condition of your core return, and current availability. For an accurate, no-obligation quote on a BMW N46TB20 remanufactured long block for your 2012 BMW 120i, call our engine specialists at (631) 991-7700 or request a quote online. We offer competitive pricing with free nationwide shipping.
What Our Customers Say
Trusted by thousands of customers nationwide
"Great experience from start to finish. The price was competitive and the quality exceeded my expectations. Will definitely buy again."
"Needed an engine fast for my work truck. They had it in stock and shipped same day. Engine is running perfectly. Highly recommend!"
"Excellent quality engine at a great price. The team was very helpful in finding the right engine for my truck. Shipped fast and arrived in perfect condition."
Warranty & Quality Assurance
Core Return Required: A refundable core deposit is required. We provide a prepaid shipping label for your old engine core return.
Call us for the best price on this BMW N46TB20 remanufactured long block. Prices may vary based on configuration.
Email: [email protected]
Why US Engine Production?
- 40+ years of experience
- 473,000+ engines in database
- Nationwide shipping
- Expert technical support
- Quality guaranteed
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More BMW 120i Engines
Other model years available for the BMW 120i
2012 BMW 120i
BMW N46TB20 2L
2008 BMW 120i
BMW N46TB20 2L
2007 BMW 120i
BMW N46TB20 2L
2009 BMW 120i
BMW N46TB20 2L
2006 BMW 120i
BMW 2L
2010 BMW 120i
BMW N46TB20 2L
2017 BMW 120i
BMW 2L
2007 BMW 120i
BMW N46TB20 2L
Vehicles with BMW N46TB20 Engine
This same engine is also available for these vehicles
2011 BMW 125i
N46TB20 2L GAS
2011 BMW 125i
N46TB20 2L GAS
2012 BMW 125i
N46TB20 2L GAS
2011 BMW 125i
N46TB20 2L GAS
2012 BMW 125i
N46TB20 2L GAS
2011 BMW 125i
N46TB20 2L GAS
2007 BMW 120i
N46TB20 2L GAS
2008 BMW 120i
N46TB20 2L GAS
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Buy BMW N46TB20 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured BMW long block engines. Our N46TB20 remanufactured long blocks for BMW vehicles include all new internal components including pistons, rings, bearings, timing components, and gaskets. Every long block is dyno tested and backed by our 1-year, unlimited mileage warranty. Whether you need a replacement long block engine for your 2012 BMW 120ior any other application, our team of experts is ready to help. Call us at (631) 991-7700 or email [email protected] for a free quote today.
